【简答题】Mary wants to go to the zoo on Sunday. So does Lucy. ______ Mary ______ Lucy want to go to the zoo On Sunday.
【单选题】_________is reported in the newspaper,_________ no need to go shopping to the supermarket, for shopping online is so convenient. [ ]
【简答题】大量呕吐、出汗或腹泻后尿量有何变化?为什么?
【单选题】Mary won’t go and Peter won’t go .
【单选题】决策盈亏平衡点法是指在一定的销售量下,企业的销售收入
【判断题】调查误差根据误差来源可以分为抽样误差和非抽样误差